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Marquise|Natural|GIA

0.50ct K VS1 Marquise Natural Diamond

GD • K/VS1 • GIA 2566378838

Certificate GIA 2566378838

Diamond specifications and retailer prices

From £403 GBP
As of November 1, 2026
Save £171 GBP (30%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £574 GBP at Steven Stone · As of November 7, 2026
View at Steven Stone

About this 0.5ct natural marquise diamond

This 0.5ct natural marquise sits in the half to three-quarter carat band, graded K colour (faint-tinted) and VS1 clarity (very-slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2566378838. Listed at 4 retailers as of November 1, 2026, with prices from £403 to £574, a £171 spread on the same certified stone. Steven Stone lists it at £574. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.50
Carat
K
Colour
VS1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryGood
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2566378838
Dimensions7.53 × 4.16 × 2.68 mm
L/W Ratio1.81
Culet sizeNone
Key to symbols
Feather, Cavity, Pinpoint
Top View
7.53 mm4.16 mm0.50 ctK / VS1
OriginNatural
CutGood
PolishVery Good
SymmetryGood
FluorescenceFaint
CertificateGIA 2566378838
Side View
Table 65.0%CrownGirdle: THN-ETKPavilionCulet: NoneDepth 64.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: £484 GBP|Low: £403 GBP|High: £574 GBP|Avg: £440 GBP|+4.2%
Retailer 1
Retailer 2
Retailer 3
Steven Stone
November 7, 2026
Retailer 2£403 GBP
Retailer 3£433 GBP
Retailer 1£484 GBP
Steven Stone£574 GBP

39 data points across 4 retailers

4 retailers£403 GBP to £574 GBP

B+
Cheapest Retailer
-
£403 GBP
B+
Retailer 2
-
£433 GBP
View
B+
Retailer 3
-
£484 GBP
View
Most Expensive
B
Steven Stone
338354189 · Nov 7
£574 GBP
View
3 more retailers have this diamond
Prices start from £403 GBPSave up to £171 GBP

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

B+
0.50ct Marquise
£403 GBP